BTC timing has two different “edges” people mix up
price edge and execution edge
price edges are unstable and can disappear
execution edges are more repeatable because they come from liquidity cycles
What the data says about TIME OF DAY (UTC + Zurich conversion)
A large intraday study finds trading activity, volatility, and illiquidity peaking around 16:00–17:00 UTC (the market gets “hotter” there) which can mean worse fills and more noise for market orders
That is 17:00–18:00 in Zurich (CET, like right now in January) 
Liquidity itself follows a daily rhythm too
One market-depth analysis shows BTC order book depth peaking around 11:00 UTC and bottoming around 21:00 UTC
That’s 12:00 Zurich as a common “deeper book” window, and 22:00 Zurich as a common “thinner book” window 
What the data says about DAY OF WEEK (don’t overtrust it)
Academic work found a “Monday higher returns” anomaly for Bitcoin in older samples, while many other coins didn’t show it
It’s not a guaranteed pattern and it can fade as the market changes 
How to HANDLE this in a clean, low-stress way
Use time-of-day mainly for execution, not prediction
If you want cleaner fills, prefer limit orders and do bigger buys when liquidity is typically stronger (around 12:00–14:00 Zurich) 
If you notice price whipsaws, avoid placing big market orders in the “heat window” (17:00–18:00 Zurich) where illiquidity/volatility often peak 
Split entries into several smaller tranches across the week so one bad timing hour doesn’t matter
Not financial advice, just stats + a simple way to use them without overthinking
